.img_one:hover{
	content:url(../img/2.jpg);
}
.ul_one{
	width: 340px;
	height: 150px;
	margin-right: -20px;
	border: 1px solid red;
	
	position: relative;
}
.ul_one li{
	width: 100px;
	height: 100px;
	background: red;
	position: absolute;
	left: 0;
	top: 0;
	z-index: 1;
}
.ul_one .big_li{
	left: 10px;
	top: 10px;
	background: gray;
	z-index: 2;
	pointer-events: none;
}






#box{
	width: 300px;
	height: 300px;
	border: 1px solid #000000;
}
.s_box{
	width: 100px;
	height: 100px;
	background: red;
	margin-left: auto;
	margin-right: 10px;
}
